The term 'PLANT PEST GENUS' can be solved by the crossword solution 'APHIS', which stands for the Animal and Plant Health Inspection Service. APHIS is a program of the United States Department of Agriculture (USDA) that works to protect and promote agricultural health, regulate genetically engineered organisms, administer the Animal Welfare Act, and help manage wildlife damage. APHIS also works to prevent the introduction and spread of plant pests and diseases that could potentially harm America's agricultural resources.